281.71% is the change from 257 to 981
Calculation steps:
[( 981 - 257 ) ÷ 257] x 100 = 281.71%
Formula
Percentage change = [(981 - 257) / 257] x 100
Subtract the new number by the original number
981 - 257 = 724
724 ÷ 257 = 2.8171206225680936
2.8171206225680936 x 100 = 281.71%